Aerator



Mfiy 2 8, 1929. H. G. 1.. DE WHALLEY Filed Aug. 22

ATTORNEY alternative form to Figure 1.

Patented May 2a, 1929.

was?

HERMES GEORGE LAWRENCE WHALLEY, OLE CARSI-IALTON, ENGLAND.

AERATOR.

Application filed August 22, 1927, Serial No. 214,713, and in Great Britain October 8, 1926.

This invention has for its object to provide a simple and etlicacious aerator adapted to be readily fixed to any suitable delivery nozzle or pipe for liquid supply and, to cause said supply to be delivered in a finely divided state wlierebythe liquid may be aerated from the surrounding air or other gas ortrom air or gas led to the liquid, or in cases Where the liquid contains solids in more or less concentrated solution or in suspension, the solids are thrown out of solution or suspension;

The invention further comprises a device whereby a supply of aerated water can at any time be drawn oil from an ordinary domestic water supply source.

The invention further comprises a counter fitting adapted to deliver a supply oft aerated water directly into a drinking vessel or other 7 receptacle containing a fruit syrup or other beverage.

The accompanying drawings illustrate by way of example constructional arrangements in accordance with the present invention. Figure 1 shows in elevation, an arrangement by which a device in accordance with the presentinvention is combined with an automaticallyclosing tap of the soda siphon type. igure 2 shows in sectional elevation a form of the pressure chamber. 7

Figure 3 shows an underside plan view of the said chamber. v

Figure 4 shows in sectional elevation a mixing chamber which is attached to the pressure chamber, and r r Figure 5 shows a sectional elevation of an As illustrated in Figs. 1 and 2 the pressure chamber 1 is adapted to be screwed on to a threaded liquid delivery nozzle 2, or it may be secured thereon by means of a rubber or other flexible cone 3 (Fig. 5).

The pressure chamber illustrated in Figs. 1 and 2 is of a larger diameter than the dc livery orifice of the liquid supply nozzle, and the wall ot the chamber opposite theinlet end is substantially flat and has projecting beyond it a conical part 4 through which one or more small passages 5 are drilled. In the form shown the passages are inclined about lO or 15 degrees to the vertical and in plan are tangential or approximatelytangential to a circle concentric with the wall of the chamber.

As shown in Figure 3 a pair of passages are n ovided, the members of the pair being slightly offset as regards the centre line.

shape of the having a curved'smooth inner wall which in the form shown is cylindrical about a vertical;

axis. Alternatively it might be conical, or

oval in cross-section or of any other smooth.

whirl-producing shape. The liquid is delievered of the liquid Within chamber 6. The bottom of chamber 6 is centrally bored to form a restricted delivery passage 7; or this passage may beformed in a separate nozzle adapted to be screwed into the chamber 6. By using detachable delivery nozzles various size delivery jets may be provided for alternative use. e

The restricted passage 7 opens at its delivery end into a cup-shaped .recess'8, the cup being of any suitable form such as parabolic to produce divergence and thereto eccentrically from the passages to produce a circular motion orwhirl atomization of fluid on emerging from the i jet. The passage 7 may be of circular section or may be of Venturi section.

The complete device shown in Fig. 1 is in-' fitting at saloons or shops tended for a counter retailing beverages. It comprises a base plate 20 having a recessed upper fa'ce'21 and drain hole 22 for drip, and a hollow standard 23 leading to the supply nozzle2, the" passage being controlled by a spring lever 24- of a form well known and requiring no further description; The threaded end 25 of the standard 23 extends below the base plate and is provided with a lock nut 26 to be secured under the top of the counter. The supply pipe of any usual form of domestic water supplyis adapted to be secured to the threaded end 25 below lock nut 26.' By this deyice, a supply of aerated water can be drawn off at any time 111130 a drinking vessel'or other-recc tacle'containin afruits ru 01' an other P c P liquid it is desired toaerate.

In the arrangement shown in Figure 5 in which the pressure chamber l and mixing chamber 6 are arranged side by side instead of on the same axis, the passageor passages 5 between the )ressure chamber 1 and mixin chamber 6 are bored in' the c'onnecting wall between the two chambers. In this arrangemerit, it will be observed that the line of entry of liquid from the pressure chamber to the mixing chamber is offset with regard to the line of flow or" the liquid into the pressure chamber, the walls of the' pressure chamber being shaped so as gradually to divert the direction of flowito the transverse passage or passages As in the construction illustrated in Figures 2 and 3 rected oil the axis so as to produce a whirling motion. of theli'quid deliver-ed.

In this modification a receptacle 10 is also provided for a'liquid such as a fruit syrup or insecticide, a small tube 11 connecting the bottom of the receptacle to an enlargement 12 in the passage 7. Theend of the tube 11 is let into the Wall of the passage in an inclined direction as shown; and as will readily be understood any liquid contained in the receptacle 10 will be gradually drawn oil and delivered with the atomized fluid from the chambers 1, .6 through the jet orifice.

i The action of the device is as follows, The liquid is fed under pressure from any usual source of supply into the pressure chamber 1 and then through the inclined tangential passage or passages 5 where it strikes the containing wall of the chamber and receives a whirling motion which is maintained through the small pas sage 7 of the delivery nozzle.

On reaching the lower end of this passage owing to the cup shaped recess into which the passage 7 opens, a fine stream oi liquid spreads around the walls of the said recess of a column of'finely dividedparticles of liquid intimately mixed with particles of air or other gas surrounding the jet. By making the cup shaped depression to conform to a 'pilraboloid section the stream of liquid will tend to spread. v i p, The aeration of the liquid may be augmented by leading into the nozzle a certain amount'of air or other gas, for example carbonic acid gas, and for this purpose the receptacle 10 may be suitably modified to hold the gas. i

It is of course tobe understood that in addition to aerating liquids, beverages or the like, the device can be used for forming fine sprays for insecticides, paints, oils, carburetion, humiditying air, spray cooling, crystallization from saturated or super-sat urated solutions and chemical reaction proc- BSSBS.

Obviously the device illustrated in Fig. 5.

I .could be attached to the nozzle 2 of the counter fitting of 1 by means of cone 3' if desired.

The liquid. to be sprayed may be passed through any suitable heating or cooling device be'tore entering the pressure chamber.

1. A counter fitting comprising a base plate, a hollow standard to convey liquid, meansto connect a liquid-supplying pipe to said standard, a liquid flow c ontrolmeans, a nozzle to said standard, an aerator on said nozzle comprising a smooth-walled whirl-pro the passage 5 is di-- into the chamber 6.

and is finally delivered in the form ducing chamber, an excentrically arranged restricted inlet-passage thereto, a delivery passage therefrom, the delivery end of said delivery passage opening into a cup-shaped recess.

2. Aerator comprising a smooth Walled pressure chamber, an inlet opening thereto, means to attach said chamber to a nozzle or pipe by means of said opening a smoothwalled whirl-producing ch amber, a restricted communication passage between said two chambers, said passagebeing offset from said inlet opening and entering said whirl-producing chamber excentrically, a restricted delivery passage leading trom said second chamber, the delivery end opening into a cupshaped recess, a receptacle to hold fluid, means to convey said fluid in smallquantity to said delivery passage. I V

A counter fitting comprising a base plate, a liquid conveying standard rising therefrom, a nozzle opening from the standard, means for controlling the flow of fluid through the nozzle, and an aerator removably connected to the nozzle, said aerator comprising a smooth-walled pressure chamher into Which the liquid from the nozzle is directly delivered, a smooth-walled Whirlproducing chamber arranged beyond the pressure chamber, and a restricted communication between said chambers said communh cation comprising a passage leading from the pressure chamber and entering the whirlproducing chamber eccentrically of the latter, the Whirl-producing chamber being formed with an outlet terminating at its delivery end in a cup-shaped recess.

4:. An aerator comprising a Whirl-producing chamber having an upper wall Or roof, a smooth bottom wall, and a smooth lateral wall symmetrically extending round a central axis and curving gradually and unbrokenly into, said bottom wall andformed with an eccentrically arranged restricted inlet assage, S i passage being directed at its out ow end so as to deliver fluid rectilinearly to a point in said lateral wall intermediate its length, said. chamber having a delivery passage formed therein and opening at its delivery end into a cup-shaped recess.

5. An aerator comprising a Whirl-producing chamber having an upper Wall or roof, a smooth bottom wall, and a smooth lateral wall symmetrically extending round a central axis and curving gradually and unbrokenly into said. bottom wall and formed with an,eccentrically arranged restricted inlet passage, said passage having a length of at least three times its diameter and being directed at its ing chamber having an upper Wall or root, a smooth bottom'wall, and a smooth lateral Wall synnnetrically extending round a central axis and curving gradually and un brokenly into said bottom Wall and formed with an eccentrically arranged restricted inlet passage, said passage being directed at its out-flow end so as to deliver fluid rectilinearly to a point in said lateral Wall intermediate its length, said chamber having a delivery passage formed therein and having a length of at least three times its mean diameter and opening at its delivery end into a cup-shaped recess.

7. An aerator comprising a Whirl-produc ing chamber having an upper Wall or root, a smooth bottom Wall, and a smooth lateral Wall symmetrically extending round a central axis and curving gradually and unbrokenly into said bottom Wall and formed With an eccentrically arranged restricted in let passage, said passage having a length of at least three times its diameter and being directed at its out fiow end so as to deliver fluid rectilinearly to a point in said lateral Wall intermediate its length, said chamber having formed therein a delivery passage extending from said chamber and having a length of at least three times its mean diameter and opening at its delivery end into a cupshaped recess.

8. An aerator including a Whirl-producing chamber having an upper Wall or roof, a smooth bottom Wall, and a smooth lateral Wall. symmetrically extendlng round a central axis and curving gradually and unbrokenly into said bottom Wall and formed with a plurality of eccentrically arranged restricted inlet passages, said passages being directed at their out-flow ends so as to deliver fluid rectilinearly to points in said lateral Wall intermediate its length, said chamber having a delivery passage extending from said chamber and opening at its delivery end into a cup-shaped recess.

9. An aerator comprising a Whirl-produc- I ing chamber having an upper Wall or root, a smooth bottom Wall, and a smooth lateral Wall symmetrically extending round a central axis and curving gradually and unbrokenly into said bottomWall and formed With a plurality of eccentrically arranged restricted inletpassages extending through said root, their out-flow ends being separated by a projection of generally triangular section, said passages being directed at their outflow ends so as to deliver fluid rectilin'early to points in said lateral Wall intermediate its length, said chamber having a delivery passage extending from said chamber and opening at its deliveryend intg a cup-shaped recess.

HERMES GEORGE LAWRENCE (le WHALLEY.

In testimony whereof I aliix my signature, 

